bids are invited for biennial maintenance contract for miscellaneous maintenance jobs in urea plant at rcf tombay unit..; 1 to and fro shifting of pump from plant and workshop and assisting during replacement as per sow 2 cleaning of pumps and spares (per pump) 3 assistance during inspection /replacement/overhauling of stuffing box of p-601 pumps 4 assistance during inspection /replacement/overhauling of stuffing box of p-602 pumps 5 assistance during valve removal / box up / overhauling of p-601 pumps 6 assistance during valve removal / box up / overhauling of p602 pumps 7 assistance on maintenance jobs of suction valve block of p-601 pumps 8 shifting of scrap material to scrap yard from the plant premises 9 transfer of material from stores to plant and arrangement of the same in the plant stores or to deliver the same on the jobs 10 flange tightening from 1” to 24” upto 600# (per inch dia) 11 prilling louvers freeing activity 12 suction strainer opening-boxup : a a)      upto 02” dia b b)     from 03” dia to 04” dia c c)      from 06” dia to 08” dia d d)     from 10”dia upto 12” dia 13 cooling tower screen opening, cleaning and box-up 14 assistance of prilling bucket replacement 15 lube oil filter opening box up of p 601/ p 602 16 gland packing tightening of pumps 17 replacement of various sizes of gaskets of flanges 18 replacement of various sizes of flanged isolation valves/ nrvs 19 assistance for replacement of gearbox of prilling bucket assembly 20 assistance for wire rope replacement of prilling bucket assembly 21 replacement of various size pin bush set of various pump & gear boxes in urea plant 22 replacement of snap wrap coupling pad & rrl coupling pad with distance piece 23 assistance for pac maintenance job. like oil filter replacement. oil replacement air filter replacement. 23.1 oil filter replacement 23.2 oil replacement 23.3 air filter replacement 23.4 belt replacement and alignment 23.5 valve removal and box up 23.6 assistance during valve overhauling job